Abstract: In the method of the invention said services include Information Technology, or IT, and scheduled services and said converged networks implement Policy Control and Charging Rules Function, or PCRF and advanced Path Computation Element, or PCE+ in a 3rd Generation Partnership Project architecture. It is characterised in that it comprises performing a communication procedure between a PCRF module and a PCE+ module by means of an adaptor entity in order to provide, said PCE+ module, information to said PCRF module, said PCRF module using said information to at least allocate network and/or IT resources demanded when provisioning said services.

Abstract: A method for improving the network resources allocation in a TISPAN network, when a network user requests at least one communication service between an access node of the TISPAN network and a destination node, the TISPAN network using MPLS packet based transport technologies and GMPLS circuit switched based transport technologies. The proposed invention defines a communication procedure between TISPAN service layer architectures and multilayer GMPLS network architectures WSON). It aims to minimize total network resources consumption of increasing traffic demands with different requirements in terms of bandwidth and QoS.